162 Annals Entomological Society of America [Vol. XII, 



Type locality, Tempe, Arizona. Type, Cat. No. 22296, 

 U. S. Nat. Mus. 



Host, Asphondylia wehsteri Felt. 



Six females and two males reared by V. L. Wildermuth 

 from galls of the alfalfa midge under Webster No. 7268, Tempe 

 No. 2251. May be a secondary parasite of Asphondylia, but 

 is more likely primary. 



Syntomaspis medicaginis, new species. 



Closely resembles Syntomaspis thalassinnis Crosby, but differs 

 by having the antennal scape pale testaceous, the face more deeply 

 concave and more hairy, the mesoscutum and scutellum more deeply 

 and closely sculptured and therefore less shining, the axillae a little 

 more widely separated and the tibiae not so dark. 



Female. Length 2 mm. Face more than ordinarily deeply concave, 

 rather strongly sculptured and closely set with silvery hairs; lateral 

 ocelli separated from the eye-margin by about the diameter of an 

 ocellus or a little less; first joint of funicle a little broader than long, 

 following joints decreasing gradually in length outwardly; club barely 

 longer than the two preceding funicle joints; mesoscutum, axillae and 

 scutellum deeply, closely reticvilate-punctate, subopaque; cross furrow 

 on scutellum distinct, the surface behind the cross-furrow reticulately 

 sculptured but not quite as deeply and finely so as the rest of scutellum ; 

 propodeum weakly reticulated, shining, with a few foveolate punctures 

 on the anterior margin but without carinae, the spiracles elliptical; 

 discal ciliation of the forewing arranged in distinct rows' and confined 

 to the area distad of a line running obliquely basad from the stigmal 

 vein to the posterior margin; the base of wing and a broad wedge- 

 shaped area immediately beneath and extending the whole length of 

 marginal vein entirely bare or with only a very few very weak cilia; 

 in the apical portion of the wing a distinct row of cilia runs from the 

 stigmal vein in a broad curve to the apical middle of wing; abdomen 

 very slightly longer than the thorax, distinctly though not deeply 

 reticulated, shining, the first tergite nearly smooth, tergites one to three 

 emarginatc at the middle; ovipositor exserted the length of thorax and 

 abdomen. Head, thorax, abdomen, coxae and all femora metallic 

 green, thoracic pleura and the coxae strongly tinged with ])urplish or 

 blackish; antennal pedicel and flagellum brownish-lDlack; antennal 

 scape, all tibiae and tarsi and the ovipositor brownish-testaceous; eyes 

 pale reddish; wings hyaline, venation pale yellowish. 



Male. Length 1.7 mm. Agrees with the female except that the 

 scape is somewhat metallic, the dorsum of thorax is slightly more 

 shining, the cross furrow on scutellum less distinct, the tibiae except 

 at apex are all blackish with more or less of a metallic lustre, and the 

 abdomen is much shorter and smaller than the thorax. 



